Starting [URL="http://www.washingtonpost.com/ac2/related/topic/Jason+Campbell+%28Football%29?tid=informline"]quarterback Jason Campbell[/URL] could miss the rest of the season with a dislocated left kneecap after suffering a hit in Thursday's win over [URL="http://www.washingtonpost.com/ac2/related/topic/Chicago?tid=informline"]Chicago[/URL], but Washington Redskins Coach [URL="http://www.washingtonpost.com/ac2/related/topic/Joe+Gibbs?tid=informline"]Joe Gibbs[/URL] said the team is not prepared to put a timetable on his recovery.